Makes sense for the story to circle back to her sister’s accident like this. I actually do like the way it’s being presented here because we don’t beat around the bush that it’s, well, obviously her sister. Nelly just straight-up tells Mashiro. I think we’ve lost a little bit of the emotional surprise factor for Mashiro to find out on her own, but at least that part won’t feel as cliched (plus, whatever confrontation happens will be emotional anyway). Mashiro’s tough.
I like where this is going. And I do think it makes sense for Bazu to be confused and take on guilt just for being an X Noman. She’s still a crow, after all. Mashiro’s been teaching her about the complexities of humans, and I like seeing this emotional flip (Bazu’s guilty, hesitant, and down, while Mashiro is keeping her head up for now).